IRCHA(国际遥控模型直升机协会)制定的直升机动作难度７个等级中英对照

东方

IRCHA(国际遥控模型直升机协会)将直升机的动作难度分为７个等级
第一级(Level I)
  Level I is the most basic of the program and is characterized by the pilot becoming SAFE and Proficient in the Hover and its related phases. Pilot position for most of the maneuvers shall be from the position of Tail-in towards the pilot.
  第一级属於最基础的课程，主要是维护操控者的安全，熟悉停悬及相关动作的技巧。执行大多数的动作时，直升机的尾部需朝向操控者。
一.Take-off（起飞）
   The take-off should be performed straight up from the landing area, at a constant rate of climb, with little lateral deviations. Come to a complete stop without any vertical bounce or dip, and little to no lateral wobble or drifting. The landing area is defined as a 1 meter diameter circle.
   由降落区内将直升机垂直起飞，保持稳定的上升速度，上升的过程中允许轻微的横向偏移。直升机停止上升後，机体需保持完全静止不动，不可有任何的垂直上升或下降，机体不可左右摇晃或漂移。降落区为直径１公尺的圆圈。

二.Stationary Hover（静止停悬）
   1. After the take-off, coming to a complete stop with little to no vertical bounce, dip, lateral drifting or wobble.
      起飞後机体保持完全静止不动，不可有任意的垂直上升或下降，机体不可左右摇晃或漂移。
   2.Hold in the Stationary Hover for one (1) minute.
     保持静止停悬１分钟。
   3.The Stationary Hover should give the appearance of being under total control.
     静止停悬时需表现出可完全掌控的模样。

三.Hover Laterally（水平移动）
   1.From take-off area hover forward ten (10) feet, hold for ten (10) seconds.
     先将直升机在起飞区的上空保持停悬，然後水平前进10尺，保持静止停悬10秒钟。
   2.From there hover backward twenty (20) feet, hold for ten (10) seconds.
     然後水平後退20尺，保持静止停悬10秒钟。
   3.From there hove forward ten (10) feet until you are over the landing area, then hover to the left ten (10) feet, hold for ten (10) seconds.
     水平前进10尺，直到直升机到达降落区的上空，向左水平移动10尺，保持静止停悬10秒钟。
   4.From there hover to the right twenty (20) feet, hold for ten (10) seconds.
     然後向右水平移动20尺，保持静止停悬10秒钟。
   5.From there hove back to the left ten (10) feet until you are over the landing area.
     向左水平移动10尺，回到降落区的上空。
   6.Land with the skids completely within the landing area.
     降落时脚架需完全落在降落区内。

四.Multiple-level Hover（多重高度停悬）
   1.Take-off, hover for five (5) seconds.
     起飞後保持静止停悬５秒钟。
   2.Climb straight up two (2) meters, hold for five (5) seconds.
     垂直上升２公尺，保持静止停悬５秒钟。
   3.Descend vertically two (2) meters, hold for five (5) seconds.
     垂直下降２公尺，保持静止停悬５秒钟。
   4.Land with the skids completely within the landing area.
     降落时脚架需完全落在降落区内。
  
五.3/4 Rear View Hovering（45°角停悬）
   1.Take-off to Hover, hold for five (5) seconds.
     起飞後保持静止停悬５秒钟。
   2.Rotate nose of helicopter either left or right forty-five (45) degrees, hold for five (5) seconds.
     向左或向右将机头旋转45°，保持静止停悬５秒钟。
   3.Rotate the nose of the helicopter back to straight ahead, hold for five (5) seconds.
     将机头旋转45°回到原来的方向，保持静止停悬５秒钟。
   4.Continue rotating the nose of the helicopter forty-five (45) degrees to the other side, hold for five (5) seconds.
     将机头朝另外一边旋转45°，保持静止停悬５秒钟。
   5.Rotate the nose back to straight ahead, hold for five (5) seconds.
     将机头旋转45°回到原来的方向，保持静止停悬５秒钟。
   6.Land with the skids completely within the landing area.
     降落时脚架需完全落在降落区内。

六.Full Lateral View Hovering（侧面停悬）
   Same as 3/4 View Hovering, but in steps 2 and 4 rotate ninety (90) degrees instead of forty-five (45) degrees.
   如同45°角停悬一般，但在步骤２及４时，将机头旋转90°。

七.Diagonal Hovering（对角停悬）
   1.After take-off from the landing area within center of a 10 meter/yard box, from Stationary Hover, maintaining a constant heading, move the helicopter diagonally to a corner of the box, hold for five (5) seconds, then return to the center of the box.
     由边长为10公尺的正方形中心点的降落区起飞後，保持机头朝固定的方向，由静止停悬开始，将直升机飞往正方形的一个角落，保持静止停悬５秒钟，然後再飞回正方形的中心点。
   2.Repeat with the remaining 3 corners of the box.
     对正方形的其馀３个角落，重覆执行步骤１。
   3.Land with the skids completely within the landing area.
     降落时脚架需完全落在降落区内。

八.Circle Hovering
   1.Tail-in Circle（机头向外水平圆）
     A.Take-off, hold hover for five (5) seconds.
       起飞後保持静止停悬５秒钟。
     B.Move the helicopter to the right, keeping the tail pointed at the pilot, in a circle    around the pilot. Until the helicopter is hovering over the take-off point.
       保持机尾朝向操控者，以操控者为圆心，以顺时针的方向，执行直径10公尺的水平圆。直到直升   机到达起飞点的上空。
     C.Move the helicopter to the left, repeating step b above.
       以逆时针的方向重覆执行步骤ｂ。
     D.Land with the skids completely within the landing area.
       降落时脚架需完全落在降落区内。

   2.Constant Heading Circle（机头定向水平圆）
     A.Take-off, hold hover for five (5) seconds.
       起飞後保持静止停悬５秒钟。
     B.Move the helicopter to the right, keeping the tail pointed in the same direction, in    a ten (10) meter circle in front of the pilot. Until the helicopter is hovering over the    take-off point.
      保持机头朝固定的方向，在操控者的前面以顺时针的方向，执行直径10公尺的水平圆。直到直升机  到达起飞点的上空。
     C.Move the helicopter to the left, repeating step b above.
       以逆时针的方向重覆执行步骤B。
     D.Land with the skids completely within the landing area.
       降落时脚架需完全落在降落区内。